A kind of method utilizing water transfer technique to carry out the process of bicycle exterior design
Technical field
The present invention relates to bicycle outward appearance and process of surface treatment technical field, particularly a kind of method utilizing water transfer technique to carry out the process of bicycle exterior design.
Background technology
The sixties in 20th century, the unit cooperations such as Tianjin Bicycle Factory, Tianjin Paint Factory, Tianjin chemical research institute, painted by the repacking to import equipment, static guiding and the development of drying unit, first Electrostatic Paint Spraying Processes is tested successfully in the whole nation in nineteen sixty-five, solve and manual water that the intrinsic paint utilization rate of the traditional handicrafts such as paint, dipping lacquer, spraying is low, coating surface gage distortion and have the drawback such as current mark and operator's Chronic Benzene Poisoning, painting rate brings up to more than 90% by 30%, makes painting technology automation become possibility.The seventies, first Tianjin Bicycle Factory's engineering participation adopts Soluble Electrophoretic Paint to substitute solvent paint in priming paint technique.Its feature is: paint film is firm, even, and work efficiency significantly improves.The eighties, Tianjin Bicycle Factory, Tianjin Bicycle Factory No.2 have introduced again the sophisticated equipment such as " Ω " electrostatic spraying, powder spray etc. of Japan, former federal republic of germany in succession, and Tianjin bicycle paint technology level is further enhanced.
Existing bicycle surface baking finish process generally adopts following flow process: polishing → oil removing → rust cleaning → phosphatization → washing → oven dry → meticulous polishing → polishing of polishing → drifting dust → basecoat paint → priming paint polishing → finish paint spraying → finish paint → lacquer painting envelope glaze.
Traditional baking vanish mode is still the major way of the existing cycle frame that is widely used and component surface process, and its weak point is: color is dull, cost is high, it is comparatively serious to pollute, production link exists potential safety hazard.
Summary of the invention
In order to solve the problem of prior art, the invention provides a kind of method utilizing water transfer technique to carry out the process of bicycle exterior design, which greatly reduce the use of solvent paint, not only decrease the pollution of environment, and eliminate the possibility of breaking out of fire; Relative to traditional baking finish process no matter from raw material or from artificial, place etc. aspect, all more economical material benefit.
The technical solution adopted in the present invention is as follows:
Utilize water transfer technique to carry out a method for bicycle exterior design process, its method is after the spraying of bicycle body primer surface terminates, and adopts water transfer technique to be transferred to needing the pattern of spraying on priming paint, and then carries out lacquer painting envelope glaze.
Water transfer technique is adopted the method needing the pattern of spraying to be transferred on priming paint specifically to be comprised the following steps:
A, making water transfer printing drawing paper: arbitrary graphic pattern as required exports egative film seal carving version after carrying out computer process, then on water transfer printing base stock, carry out assorted pattern printing, and the base stock of printed pattern republishes front cover oil, forms water transfer printing drawing paper;
B, drawing paper soak: be immersed in water by water transfer printing drawing paper, using spray gun to be sprayed at shifting to an earlier date deployed activating solvent uniformly above paper, making paper molecule by dissolution with solvents;
C, the bicycle body of spray coated priming paint to be at the uniform velocity placed in by the paper dissolved, to utilize hydraulic pressure to make the pattern above paper uniformly by coated for these parts;
D, bicycle body is placed in water tank rinses;
E, to dry.
Activating solvent is according to cyclohexanone, b propanol, dibutylester, second fat, benzophenone, be placed in polyethylene can after modulation evenly with the ratio of mol ratio 4.6:2.2:2.8:0.4:1 temperature less than 30 degrees Celsius, sealing placement more than 24 hours is limpid rear obtained to solution.
In step C, the temperature of water is between 8-30 degree Celsius, between pH value 5.0-7.5.
The beneficial effect that technical scheme provided by the invention is brought is:
The present invention utilizes hydraulic pressure that the paper of band multicolour pattern is carried out macromolecule hydrolysis, thus reaches the effect of printing, the raising required product decoration along with people, and the principle of its indirect printing and perfect printing effect solve a difficult problem for incrustation; Greatly reduce the use of solvent paint, not only decrease the pollution of environment, and eliminate the possibility of breaking out of fire; Relative to traditional baking finish process no matter from raw material or from artificial, place etc. aspect, all more economical material benefit.
Detailed description of the invention
For making the object, technical solutions and advantages of the present invention clearly, below embodiment of the present invention is described further in detail.
Utilize water transfer technique to carry out a method for bicycle exterior design process, its method comprises the following steps:
Polishing → oil removing → rust cleaning → phosphatization → washing → oven dry → polishing → drifting dust → basecoat paint → water transfer process → lacquer painting envelope glaze.
Wherein, the concrete steps of water transfer process are:
A, making water transfer printing drawing paper: arbitrary graphic pattern as required exports egative film seal carving version after carrying out computer process, then on water transfer printing base stock, carry out assorted pattern printing, and the base stock of printed pattern republishes front cover oil, forms water transfer printing drawing paper;
B, drawing paper soak: be immersed in water by water transfer printing drawing paper, using spray gun to be sprayed at shifting to an earlier date deployed activating solvent uniformly above paper, making paper molecule by dissolution with solvents;
C, to be at the uniform velocity placed in the bicycle body of spray coated priming paint by the paper dissolved, to utilize hydraulic pressure to make the pattern above paper uniformly by coated for these parts, bicycle body requires that surface is dustless and smooth;
D, bicycle body is placed in water tank rinses;
E, to dry.
The activating solvent of the present embodiment is according to cyclohexanone, b propanol, dibutylester, second fat, benzophenone, be placed in polyethylene can after modulation evenly with the ratio of mol ratio 4.6:2.2:2.8:0.4:1 temperature less than 30 degrees Celsius, sealing placement more than 24 hours is limpid rear obtained to solution.
In step C, the temperature of water is between 8-30 degree Celsius, between pH value 5.0-7.5.Watermark film is put into water, wait for that watermark film body 100% is attached to after in water, the activating solvent modulated is sprayed on film body uniformly, about waiting for 25-40 second, the vehicle frame maintenance needing to enclose pattern is lain in a horizontal plane on the film body disperseed after film body disperses by activating solvent naturally, bicycle body is taken out.
The bicycle body of attached good film body is placed in the water transfer printing hydro-peening streamline developed voluntarily, allow object after the flowing water hydro-peening of about 3 minutes, all refuses are given up be dipped in water about 1 minute again and pull out after object takes out by film and drain, carry out drying and spray light agent Lacquer finish program without the laggard baking oven of moisture again to object.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.